Which format is a standard for encoding bibliographic data used in library catalogs?

Which format is a standard for encoding bibliographic data used in library catalogs?

• A. Library of Congress Classification
• B. MARC
• C. Dewey Decimal
• D. Librarian's Index

Answer: (B)

Encoding bibliographic data for library catalogs is done using a machine-readable format that structures information into standardized fields and subfields so different systems can read and share records consistently. This format is MARC, which organizes data into predefined elements like 245 for the title, 100 for the author, 260/264 for publication information, and 020 for ISBN. Because of this structure, MARC records can be imported, exported, and processed across libraries and catalog systems, supporting interoperability and efficient cataloging workflows. MARC 21 is a common version used today. The other options refer to ways of organizing or accessing materials rather than how bibliographic data is encoded. Library of Congress Classification and Dewey Decimal are schemes for shelving and organizing materials, not the format used to encode catalog records. Librarian's Index isn’t a standard encoding format for bibliographic data.

Encoding bibliographic data for library catalogs is done using a machine-readable format that structures information into standardized fields and subfields so different systems can read and share records consistently. This format is MARC, which organizes data into predefined elements like 245 for the title, 100 for the author, 260/264 for publication information, and 020 for ISBN. Because of this structure, MARC records can be imported, exported, and processed across libraries and catalog systems, supporting interoperability and efficient cataloging workflows. MARC 21 is a common version used today.

The other options refer to ways of organizing or accessing materials rather than how bibliographic data is encoded. Library of Congress Classification and Dewey Decimal are schemes for shelving and organizing materials, not the format used to encode catalog records. Librarian's Index isn’t a standard encoding format for bibliographic data.